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Goku and the entire gang are on their way to Bulma's house in West City to celebrate her birthday. Along the way Goku learns learns about safe street-crossing rules from a little girl he meets. Krillin and Master Roshi also witness an event that illustrates why children shouldn't run into the street carelessly.
Goku is a member of a town's fire brigade, and after helping a young girl and her brother with an accidental fire, he teaches them about fire safety. Goku's brigade is later summoned to rescue Bulma when a fire starts in her apartment.
Mom and Dad imagine their little baby in Mom's tummy, which is just like a universe filled with amniotic fluid and the baby is having an adventure there.